LINUX查詢登陸主機的用戶工具：w 、who 、users

w、who和users工具，是查詢已登陸當前主機的用戶；另外finger -s 也一樣能查詢；側重點不同；請本身對比着看；畢竟簡單，這裏只是介紹 ；

[beinan@localhost ~]$ w

12:09:56 up  3:43,  7 users,  load average: 0.16, 0.10, 0.04

USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT

beinan   tty1     -                08:27    3:42m  3:09   0.00s /bin/sh /usr/X11R6/bin/startx

linuxsir tty2     -                10:03    2:06m  0.01s  0.01s -bash

beinan   pts/0    :0.0             11:36    1:09   0.15s  0.15s bash

beinan   pts/1    :0.0             11:37    1:12   0.21s  0.21s bash

beinan   pts/2    :0.0             12:02    6:52   0.09s  0.09s bash

beinan   pts/3    :0.0             12:05   12.00s  0.11s  0.06s ssh xmbnnbdl@linuxsir.org -p 17007

beinan   pts/4    :0.0             12:06    0.00s  0.21s  0.00s w

[beinan@localhost ~]$ who

beinan   tty1         Nov  2 08:27

linuxsir tty2         Nov  2 10:03

beinan   pts/0        Nov  2 11:36 (:0.0)

beinan   pts/1        Nov  2 11:37 (:0.0)

beinan   pts/2        Nov  2 12:02 (:0.0)

beinan   pts/3        Nov  2 12:05 (:0.0)

beinan   pts/4        Nov  2 12:06 (:0.0)

[beinan@localhost ~]$ users

beinan beinan beinan beinan beinan beinan linuxsir